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Temperature and rainfall data are used in several scientific studies. However, the paucity of data resulting from the low density of weather stations is a problem frequently encountered in these studies. Thus, the use of estimated data from satellites has become an important tool in regions where they are scarce. In this study comparisons were made between monthly rainfall data estimated by TRMM satellite and temperature data estimated by the satellite Aqua/MODIS data observed by surface stations, for different locations in the State of Sao Paulo during the period 2003 to 2010. The results showed that for the rainfall data, smaller errors were observed during the winter and higher during the summer months. In relation to the temperature data it was observed that with the inclusion of the correction factor, the Aqua satellite data showed good accuracy in all months. Overall, the results obtained by validation of the data of rain and temperature, indicating that the satellite TRMM and Aqua are efficient alternatives for obtaining information of locations where there are errors or shortage of the same, may also be used to analyse the consistency of data collected by meteorological networks.

Validação de dados termopluviométricos obtidos via sensoriamento remoto para o Estado de São Paulo